New cycloid rotor profiles design under different rolling circle radii for Roots vacuum pumps

Autor: Zhengqing Li, Xiaojun Wang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: SN Applied Sciences, Vol 4, Iss 10, Pp 1-9 (2022)
Druh dokumentu: article
ISSN: 2523-3963
2523-3971
DOI: 10.1007/s42452-022-05174-x
Popis: Article highlights 1. Two new rotor profiles are proposed and designed to improve the performance for Roots vacuum pump. 2. For the new rotor profile formed by a large rolling circle, its volume utilization rate is greater than 60%, which can pump more gas in a cycle and significantly better than that of traditional profile, such as arc profile. 3. For the new rotor profile formed by a small rolling circle, its pressure ratio is greater than traditional rotor profiles because its length of minimum gap between rotor profile and chamber is critical increased to decrease the back flow.
Databáze: Directory of Open Access Journals
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